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10. Maintenance/Inspection
10-1. Maintenance/Inspection Schedule
Having the units inspected by a specialist on a regular basis, in addition to regular maintenance such as
changing the filters, will allow the users to use them safely and in good condition for an extended period of
time.
The chart below indicates standard maintenance schedule.
(1) Approximate Longevity of Various Parts
The chart shows an approximate longevity of parts. It is an estimation of the time when old parts may
need to be replaced or repairs need to be made.
It does not mean that the parts must absolutely be replaced (except for the fan belt).
Please note that the figures in the chart do not mean warranty periods.
Unit
Parts
Fan Motor
Bearing
Fan Belt
Air Filter
Drain Pan
Drain Hose
Linear Expansion Valve
Heat Exchanger
Float Switch
Indicator Lamp
Compressor
Fan motor
Linear Expansion Valve
Heat Exchanger
Pressure Switch
Inverter Cooling Fan
(2) Notes
GThe above chart shows a maintenance schedule for a unit that is used under the following conditions:
A. Less than 6 times per hour of compressor stoppage
B. The unit stays on 24 hours a day.
GShortening the inspection cycle may need to be considered when the following conditions apply:
➀ When used in high temperature/high humidity area or when used in a place where the temperature
and/or humidity fluctuate greatly
➁ When plugged into an unstable power source (sudden change in voltage, frequency, wave distor-
tions) (Do not exceed the maximum capacity.)
➂ When the unit is installed in a place where it receives vibrations or major impacts.
➃ When used in a place with poor air quality (containing dust particles, salt, poisonous gas such as
sulfuric acid gas and sulfuric hydrogen gas, oil mist).
GEven when the above maintenance schedule is followed, there could be unexpected problems that
cannot be predicted.
GHolding of Parts
We will hold parts for the units for at least 9 years after the termination of the production of the unit,
following the standards set by the ministry of economics and industries.
Check
Replace
Daily
every
after
check
6 months 40000 hours
6 months 40000 hours
6 months 8000 hours
3 months 5 years
Yes
6 months 8 years
6 months 8 years
1 year
25000 hours
1 year
5 years
6 months 25000 hours
1year
8000 hours
6 months 40000 hours
6 months 40000 hours
1 year
25000 hours
1 year
5 years
1 year
25000 hours
1 year
40000 hours
40
Periodically
Remarks
check
Yes
Yes
Add lubricant once a year
Yes
Disposable parts
Maintenance schedule changes depending
Yes
on the local conditions
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
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